#include <LiquidCrystal_I2C.h>
#include <Wire.h>

LiquidCrystal_I2C mylcd(0x20, 16, 2);
String read;

void setup() {
  Serial.begin(9600);
  mylcd.init();
  mylcd.backlight();
  read = "";
  mylcd.setCursor(0, 0);
  mylcd.print("Reception:");
  mylcd.setCursor(0, 1);
  mylcd.print("");
  Serial.begin(9600);
}

void loop() {
  read = Serial.readString();
  if (read != "") {
    mylcd.clear();
    mylcd.setCursor(0, 0);
    mylcd.print("Reception:");
    mylcd.setCursor(0, 1);
    mylcd.print(read);
  }
}
